POROTHERM is an aerated, honeycomb-matrix, clay block (not brick) walling system. Simple and fast construction requires only clay block, concrete and steel, with a finished render. It’s not a cladding system, but a structural walling system.
Developed by Wienerberger, Europe’s largest manufacturer of clay construction materials, it is now used in up to 80% of commercial and residential construction in Europe. Used for hundreds of years globally for its amazing performance and durability, its use is fast gaining popularity worldwide.

With more than 20 POROTHERM projects here in New Zealand at various stages of planning and completion, POROTHERM is gaining recognition in the NZ building market.
Cost per m2 is comparative to a 140mm timber frame build. Seismic AND fire-resistant, durable, breathable, and 100% natural. The block has a design life of 150 years and material life of 400+ years. Average block thickness of 250mm, R-values between 1.7 – 5.4. Thermal mass in POROTHERM walls provide warmth in winter and cooling in summer to create an all-year-round living temperature between 18-22C. Near zero energy and maintenance requirement.